Porn producers are threatening to quit filming in Los Angeles after voters approved a measure requiring adult-movie actors to wear condoms during shoots to protect them from sexually transmitted diseases.

The industry asked the Los Angeles County Board of Supervisors to delay implementing Measure B, which also mandates that producers acquire public health permits. Diane Duke, executive director of the Free Speech Coalition, an industry trade group, said it would challenge the initiative and trust the “calm, serious deliberations of the legal system” to prove it’s unconstitutional.